2221352442 has 24 divisors (see below), whose sum is σ = 4814428320. Its totient is φ = 740220360.

The previous prime is 2221352431. The next prime is 2221352473. The reversal of 2221352442 is 2442531222.

2221352442 is a `hidden beast` number, since 2 + 2 + 213 + 5 + 2 + 442 = 666.

2221352442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46267 + ... + 81137.

It is an arithmetic number, because the mean of its divisors is an integer number (200601180).

Almost surely, 2^2221352442 is an apocalyptic number.

2221352442 is an abundant number, since it is smaller than the sum of its proper divisors (2593075878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221352442 is a wasteful number, since it uses less digits than its factorization.

2221352442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38418 (or 38415 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 2221352442 is about 47131.2257638182. The cubic root of 2221352442 is about 1304.7856044499.

Adding to 2221352442 its reverse (2442531222), we get a palindrome (4663883664).

The spelling of 2221352442 in words is "two billion, two hundred twenty-one million, three hundred fifty-two thousand, four hundred forty-two".